Submarine Manufacturing & Products Limited

The Coltri LP 280 Rotary Silent nitrox system consists of a rotary screw low pressure compressor that supplies air to a membrane system where oxygen rich air is separated away from nitrogen air. The oxygen rich air (nitrox) is then mixed and delivered to the intake of a high pressure compressor to be pumped into the tanks. The oxygen percentage is available from 22.40 % by adjusting the regulated air input pressure. The system utilizes a 7.5 Kw, 740l/m, 175 psi (12 bar) rotary screw compressor mounted with a three-phase electric motor in a silenced cabinet.

Compressor system components include: low pressure rotary screw compressor, volume tank with over pressure relief, condensate drain, motor and frame.

The nitrox system parts include: low pressure filtration to 0.003 ppm oil vapour, low pressure regulator, heater with automatic thermostat control, permeable membrane, mixing tube, compressor intake porting, permeate hose for connection to your exsiting HP compressor intake, inline oxygen sensor with analyzer to supply a reading of what oxygen % is going to your compressor and a fill oxygen % analyzer with high pressure to low pressure regulator to supply accurate readings of oxygen % from your compressor to the tanks being filled.

The Coltri LP 280 Rotary Silent Nitrox Compressor has the following nitrox compressor specification

• CHARGING RATE: 1070 L/min
• WORKING PRESSURE: 10 Bar - 175 Psi
• % MAX O2: 40 %
• DRIVEN BY: Three-phase electric
• POWER: 7,5 Kw (400 V - 50 Hz) - (230 V - 60 Hz)
• DIMENSIONS:
    height 103 cm / 41"
    width 80 cm / 31"
    depth 70 cm / 28"
• DRY WEIGHT: 360 Kg / 793 lbs with dryer
• NOISE (ISO 3746): 71 dB
• LUBRICATING OIL CAPACITY: 6 L / 177.4 FL.OZ.
• LUBRICANT: Alusynt FGC46
• OIL REPLACEMENT: 1500 hours
• FRAME: Powder coated steel
• FILTRATION: 0,003 PPM oil vapor
• MINIMUM OPERATING AMBIENT TEMPERATURE: -15 °C